Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics.Eventing.Reader;
using System.Drawing;
using System.Linq;
using System.Media;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace SpaceShooter
{
    public partial class SpaceShooter : Form
    {
        PictureBox[] stars;
        int backgroundspeed;
        int playerSpeed;

        PictureBox[] munitions;
        int MunitionSpeed;


        Random rnd;
        public SpaceShooter()
        {
            InitializeComponent();
            
     
        }
        

        //Creating the "star" objects with different color aand at random locations in the window.
        private void Form1_Load(object sender, EventArgs e)
        {
            backgroundspeed = 4;
            playerSpeed = 4;
            stars = new PictureBox[10];
            rnd = new Random();

            MunitionSpeed = 20;
            munitions = new PictureBox[3];

            //Load Image
            Image munition = Image.FromFile(@"assets\munition.png");

            for (int i = 0; i < stars.Length; i++)
            {
                stars[i] = new PictureBox();
                stars[i].BorderStyle = BorderStyle.None;
                stars[i].Location = new Point(rnd.Next(20, 580), rnd.Next(-10,400));
                if (i % 2 == 1)
                {
                    stars[i].Size = new Size(2, 2);
                    stars[i].BackColor = Color.Wheat;
                }
                else
                {
                    stars[i].Size = new Size(3,3);
                    stars[i].BackColor = Color.DarkGray;
                }
                this.Controls.Add(stars[i]);
            }
        
            for (int i = 0;i < munitions.Length; i++)
            {
                munitions[i] = new PictureBox();
                munitions[i].Size = new Size(8,8);
                munitions[i].Image = munition;
                munitions[i].SizeMode = PictureBoxSizeMode.Zoom;
                munitions[i].BorderStyle= BorderStyle.None;
                this.Controls.Add(munitions[i]);
            }
        }

        //Dots moving at different speeds to add immersiveness. 
   
        private void MoveBackground_Tick(object sender, EventArgs e)
        {
            for (int i = 0; i < stars.Length / 2; i++)
            {
                stars[i].Top += backgroundspeed;

                if (stars[i].Top >= this.Height)
                {
                    stars[i].Top = -stars[i].Height;
                }
            }

            for (int i = stars.Length / 2; i < stars.Length; i++)
            {
                stars[i].Top = backgroundspeed - 2;

                if (stars[i].Top >= this.Height)
                {
                    stars[i].Top = -stars[i].Height;
                }
            }
        }

        private void LeftMoveTimer_Tick(object sender, EventArgs e)
        {
            if (Player.Left > 10)
            {
                Player.Left -= playerSpeed;
            }
        }

        private void RightMoveTimer_Tick(object sender, EventArgs e)
        {
            if (Player.Right < 500)
            {
                Player.Left += playerSpeed;
            }
        }

        private void DownMoveTimer_Tick(object sender, EventArgs e)
        {
            if (Player.Top < 400)
            {
                Player.Top += playerSpeed;
            }
        }

        private void UpMoveTimer_Tick(object sender, EventArgs e)
        {
            if (Player.Top > 10)
            {
                Player.Top -= playerSpeed;
            }
        }

        private void pictureBox1_Click(object sender, EventArgs e)
        {

        }

        private void SpaceShooter_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Right)
            {
                RightMoveTimer.Start(); 
            }
            if (e.KeyCode == Keys.Left)
            {
                LeftMoveTimer.Start();
            }
            if (e.KeyCode == Keys.Down)
            {
                DownMoveTimer.Start();
            }
            if (e.KeyCode == Keys.Up)
            {
                UpMoveTimer.Start();
            }
        }

        private void SpaceShooter_KeyUp(object sender, KeyEventArgs e)
        {
            RightMoveTimer.Stop();
            LeftMoveTimer.Stop();
            DownMoveTimer.Stop();
            UpMoveTimer.Stop();
        }

        private void MoveMunitionsTimer_Tick(object sender, EventArgs e)
        {
            for (int i = 0; i < munitions.Length; i++)
            {
                if (munitions[i].Top > 0)
                {
                    munitions[i].Visible = true;
                    munitions[i].Top -= MunitionSpeed;
                }
                else
                {
                    munitions[i].Visible = false;
                    munitions[i].Location = new Point(Player.Location.X + 42, Player.Location.Y - i * 30);
                }
            }
            
        }
    }
}